​Expansion Joints provide space between concrete slabs as a buffer for expansion on hot days and contraction when it is cold.  Usually these expansion joints are installed during the initial installation of the concrete and are made of wood or some soft material so they can move with the expansion and contraction of the concrete.  These joints vary in size from half-inch to an inch in width and three to four inches in depth.  A slab without expansion joints will crack which will reduce the life of the concrete slab.  These joints will crack all the way to the bottom of the concrete.   If they come open, water will be allowed to run under the bed of the slab, eroding it and creating voids which  can heave and cause major cracks and displacement in the concrete.  Open joints can also be point of deterioration of the concrete because of weed growth and insect penetration. 

  • REMOVE THE OLD MASTIC
  • GRIND AND PREP THE SURFACES 
  • INSTALL BACKER ROD AT 3/4" DEPTH OR MORE
  • MIX AND INSTALL MASTIC 
  • APPLY SAND TOPPING FOR TEXTURE
  • MARK OFF AND SECURE THE AREA

As with most home repairs, you have two choices: DIY or hire a professional. But, keep in mind, if you make a mistake water could be leaking behind or under your concrete or pool deck, which could require replacing your entire deck or driveway if not caught. Granted, that is the worst case scenario, but worth keeping in mind.  Call the professionals at the Texas Mastic Company and you can rest assured the repairs will be done correctly and in a timely manner so you can get back to enjoying your home.​

  • REMOVE THE OLD MASTIC
  • GRIND AND PREP THE SURFACES 
  • INSTALL BACKER ROD AT 3/4" DEPTH OR MORE
  • MIX AND INSTALL MASTIC 
  • APPLY SAND TOPPING FOR TEXTURE
  • MARK OFF AND SECURE THE AREA

PATIO AND NATURAL STONE EXPANSION JOINT REPAIR AND REPLACEMENT

When Should I Have My Joints Sealed or Replaced?

​Contact us today for a free estimate to replace or repair your expansion joints. Click here to use our Free Estimate Request form. 

Today, you learned what an expansion joint is, why it matters to the health of your concrete driveway, sidewalk, walkway or pool deck, as well as when to replace it and who to call to repair it.  If you have more questions about your expansion joints or expansion joint sealant feel free to send your questions via email to sales@texasmastic.com or feel free to call the Texas Mastic Company’s Service Department.  We are happy to help you with any expansion joint sealant issues that you may have.  Our phone number is 713-588-6441.

After more than two decades of servicing the Houston areas mastic needs, we are proud to say the Texas Mastic Company is at your service. We have experienced technicians ready to serve you, we are here to help.

​There are two types of joints in concrete, Expansion Joints and Control Crack Joints. We repair and seal both types of joints. 
​Below are diagrams of each. 

Control Crack Joints allow cracking in a controlled area as the slab settles with time. Usually these joints are cut into the slab after the concrete hardens. Control Crack Joints vary in size from one-eighth inch to one-quarter inch in width and a half inch in depth. A slab without these joints will crack in random patterns which ruins the look of the concrete and allows for damage from water intrusion thereby reducing the life of the slab.

Both type of joints will accumulate dirt and debris, allow grass or weeds to grow, and allow water to filter under the slab, etc.  Water under the slab accelerates the settling of the concrete slab creating uneven concrete surfaces and cracks which is a very serious problem in Texas.

It is very important to keep joints in good repair.  An annual inspection of joints should be on every homeowner's to do list.  And knowing the proper way to repair these joints is very important.  Many people just fill them up with a concrete material.  This is not an optimal solution as the concrete will not expand and contract but will crack.  A  flexible joint sealer should be used to seal the joints to prevent water penetration, dirt and foreign matter accumulation while allowing the slab to move as it expands and contracts. 

Expansion Joint Repairs

  • REMOVE THE OLD MASTIC
  • GRIND AND PREP THE SURFACES 
  • INSTALL BACKER ROD AT 3/4" DEPTH OR MORE
  • MIX AND INSTALL MASTIC 
  • APPLY SAND TOPPING FOR TEXTURE
  • MARK OFF AND SECURE THE AREA

How do I Repair My Expansion Joints or Mastic?

Repair Benefits

  •    Reduces Cracking
  •    Prevents water from running below the concrete and creating voids
  •    Eliminates the accumulation of dirt, salt, and other foreign materials
  •    Prevents weed and grass growth
  •    Prevents breakage from creating trip points
  •    Humidity Retention - Reduced Ground shifting
  •    Bonds to concrete for long service life - will expand up to 1" before breaking
  •    Prevents water from getting to rebar and creating rust
  •    Easier to clean
  •    Improves appearance of property 

DRIVEWAY AND WALKWAY EXPANSION JOINT REPAIR AND REPLACEMENT

Driveway, Patio, Pool and Sidewalk Expansion Joint Repair And Replacement Services.

BASF Sonneborn II
Self leveling joint material
Many popular custom colors

FREE ESTIMATES 713-588-6441

​The expansion joints should be inspected yearly and replaced when you notice the sealant in the expansion joint is peeling, cracking or wood is rotting. Other indicators include pool tiles falling off, cracks in your concrete, or heaving (rising) in your concrete or pool deck. In fact, anytime you notice the concrete is changing it means you should inspect your expansion joints and mastic for seal leaks.

SWIMMING POOL EXPANSION JOINT REPAIR AND REPLACEMENT

What You Have Learned Today.

Texas Mastic Company

Expansion Joint Restoration - Pool Deck Restoration - Concrete Makeover

Driveway - Patio - Pool - Walkway Repairs